Highly enantioselective aerobic oxidative cross-coupling of 2-naphthols with broad substrate scope was achieved using an iron(salan) complex as the catalyst. Enantiomeric excesses of the products ranged from 87 to 95%. The scope of the cross-coupling reaction was found to be different from that of the homocoupling reaction under the same reaction conditions.
Quinoid BINOL-type compounds as a novel class of chiral ligands
作者:Ana Minatti、Karl Heinz Dötz
DOI:10.1016/j.tetasy.2005.08.026
日期:2005.10
A short and efficient synthesis of a novel family of quinone-substituted BINOL-type ligands exploiting the chromium-templated [3+2+1]benzannulationreaction as the key step is reported.